12381451 has 2 divisors, whose sum is σ = 12381452. Its totient is φ = 12381450.

The previous prime is 12381443. The next prime is 12381469. The reversal of 12381451 is 15418321.

12381451 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12381451 - 2³ = 12381443 is a prime.

It is not a weakly prime, because it can be changed into another prime (12381851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6190725 + 6190726.

It is an arithmetic number, because the mean of its divisors is an integer number (6190726).

Almost surely, 2^12381451 is an apocalyptic number.

12381451 is a deficient number, since it is larger than the sum of its proper divisors (1).

12381451 is an equidigital number, since it uses as much as digits as its factorization.

12381451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 25.

The square root of 12381451 is about 3518.7286056188. The cubic root of 12381451 is about 231.3434357268.

Adding to 12381451 its reverse (15418321), we get a palindrome (27799772).

The spelling of 12381451 in words is "twelve million, three hundred eighty-one thousand, four hundred fifty-one".